JDL

“I have committed another crime, Hadley,' he said. 'I have guessed the truth again.”
― John Dickson Carr, The Three Coffins

“We don't fall in love with a woman because of her good character.”
― John Dickson Carr, He Who Whispers

“It’s all very well to have your eight suspects parading in their endless ring-around-the-rosebush outside the library. That’s fine. But give some sensible reason why they were there. If you must shower the room with bus tickets, provide a reason for that too. In other words, construct your story. Your present problem is not to explain the villainy of the guilty: it’s to explain the stupidity of the innocent.”
― John Dickson Carr, The Door To Doom And Other Detections

“I am a mathematician, sir. I never permit myself to think.”
― John Dickson Carr, The Hollow Man